Merge "[RICPLT-1423] Big Red button API - Implementation - Disconnect status"
[ric-plt/e2mgr.git] / E2Manager / handlers / endc_x2setupFailureResponseToProtobuf.go
1 //
2 // Copyright 2019 AT&T Intellectual Property
3 // Copyright 2019 Nokia
4 //
5 // Licensed under the Apache License, Version 2.0 (the "License");
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
8 //
9 //      http://www.apache.org/licenses/LICENSE-2.0
10 //
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
16 //
17
18 package handlers
19
20 // #cgo CFLAGS: -I../asn1codec/inc/  -I../asn1codec/e2ap_engine/
21 // #cgo LDFLAGS: -L ../asn1codec/lib/ -L../asn1codec/e2ap_engine/ -le2ap_codec -lasncodec
22 // #include <asn1codec_utils.h>
23 // #include <x2setup_response_wrapper.h>
24 import "C"
25 import (
26         "e2mgr/logger"
27         "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
28         "unsafe"
29 )
30
31 // Populate and return the EN-DC/X2 setup response failure structure with data from the pdu
32 func endcX2SetupFailureResponseToProtobuf(pdu *C.E2AP_PDU_t) (*entities.SetupFailure, error) {
33         setupFailure := entities.SetupFailure{}
34
35         if pdu.present == C.E2AP_PDU_PR_unsuccessfulOutcome {
36                 //dereference a union of pointers (C union is represented as a byte array with the size of the largest member)
37                 unsuccessfulOutcome := *(**C.UnsuccessfulOutcome_t)(unsafe.Pointer(&pdu.choice[0]))
38                 if unsuccessfulOutcome != nil && unsuccessfulOutcome.value.present == C.UnsuccessfulOutcome__value_PR_ENDCX2SetupFailure {
39                         endcX2SetupFailure := (*C.ENDCX2SetupFailure_t)(unsafe.Pointer(&unsuccessfulOutcome.value.choice[0]))
40                         if endcX2SetupFailure != nil && endcX2SetupFailure.protocolIEs.list.count > 0 {
41                                 count:=int(endcX2SetupFailure.protocolIEs.list.count)
42                                 endcX2SetupFailure_IEs_slice := (*[1 << 30]*C.ENDCX2SetupFailure_IEs_t)(unsafe.Pointer(endcX2SetupFailure.protocolIEs.list.array))[:count:count]
43                                 for _, endcX2SetupFailure_IE := range endcX2SetupFailure_IEs_slice {
44                                         if endcX2SetupFailure_IE != nil {
45                                                 switch endcX2SetupFailure_IE.value.present {
46                                                 case C.ENDCX2SetupFailure_IEs__value_PR_Cause:
47                                                         causeIE := (*C.Cause_t)(unsafe.Pointer(&endcX2SetupFailure_IE.value.choice[0]))
48                                                         err := getCause(causeIE, &setupFailure)
49                                                         if err != nil {
50                                                                 return nil, err
51                                                         }
52                                                 case C.ENDCX2SetupFailure_IEs__value_PR_TimeToWait:
53                                                         setupFailure.TimeToWait = entities.TimeToWait(1 + *((*C.TimeToWait_t)(unsafe.Pointer(&endcX2SetupFailure_IE.value.choice[0]))))
54                                                 case C.ENDCX2SetupFailure_IEs__value_PR_CriticalityDiagnostics:
55                                                         cdIE := (*C.CriticalityDiagnostics_t)(unsafe.Pointer(&endcX2SetupFailure_IE.value.choice[0]))
56                                                         if cd, err := getCriticalityDiagnostics(cdIE); err == nil {
57                                                                 setupFailure.CriticalityDiagnostics = cd
58                                                         } else {
59                                                                 return nil, err
60                                                         }
61                                                 }
62                                         }
63                                 }
64                         }
65                 }
66         }
67
68         return &setupFailure, nil
69 }
70
71 func unpackEndcX2SetupFailureResponseAndExtract(logger *logger.Logger, allocationBufferSize int, packedBufferSize int, packedBuf []byte, maxMessageBufferSize int) (*entities.SetupFailure, error) {
72         pdu, err := unpackX2apPdu(logger, allocationBufferSize, packedBufferSize, packedBuf, maxMessageBufferSize)
73         if err != nil {
74                 return nil, err
75         }
76
77         defer C.delete_pdu(pdu)
78
79         return endcX2SetupFailureResponseToProtobuf(pdu)
80 }